Home / 2,918,574.40-4,377,861.60-788,987.20

Finding the Fourth Proportional to 2,918,574.40, 4,377,861.60 and 788,987.20

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Solution

The fourth proportional to 2,918,574.40, 4,377,861.60 and 788,987.20 is: 1,183,480.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,918,574.40 : 4,377,861.60 = 788,987.20 : x
  2. Step 2: Convert to fraction form
    2,918,574.40/4,377,861.60 = 788,987.20/x
  3. Step 3: Cross multiply
    2,918,574.40x = 4,377,861.60 × 788,987.20
  4. Step 4: Simplify right side
    2,918,574.40x = 3,454,076,765,771.52
  5. Step 5: Solve for x
    x = 3,454,076,765,771.52/2,918,574.40
  6. Step 6: Final answer
    x = 1,183,480.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.